Improved boot-crimper



"dubai 5deurs JOHN B. AIKIN, OF SOMERTON, OHIO.

Leners Patent No. 90,477, dazed Maly 25,1869.

IMPROVE!) BOOT-GRIMPER.

The Schedule referred to in these Letters Patent and'making part of thesame.

To all whom 'it may concern Be it known that I, J OHN B. AIKIN, ofSomerton, in the county of Belmont, and State of Ohio, have invented anew and improved Boot-Grimper; and I -do hereby declare that thefollowing is a full, clear, and exact description of the constructionand operation of the same, reference being had to the accompanyingdrawings, making a part 'of this specification, in which- Figure l is anend elevation,

Figure 2, a side elevation, and

Figure 3, a detached view ot' a part of the olimping-board, or pattern,showing a portion thereof 1n section.

The object of this invention is to provide for public use aboot-crimper, which can be very quickly and conveniently operated, andwhich will crimp the boot without wrinkling the leather at the instep.

In the drawiugs-'- A represents the frame of the machine, whichresembles that of an old-fashioned hand printingpress, being supportedon three legs aa a,and having a stout standard, a?, the object of whichis to support the plate B, which forms the tixed jaw of the clamp.

B is the movable jaw of the clamp, it being supported on a standard, b,which embraces and slides horizontally upon an armor shank of the legal.

G is a screw-rod,l working through a nut, c, for the purpose of movingthe jaw B hackand forth, toward and from its companion B.

D is a spring-standard, supporting the rod G, and forming an abutmentwhich confines the -nut c in place,- and insures. the properv operationvof the Yscrew-rod, while, at the-same time, it yields slightly,allowing the movable jaw to give7 as the pattern and boot are forceddown between the clamps.

M is the pattern, or crimping-board, having a piu, fm, at one end, and aratchet-plate, m', at the other, as shown in iig. l. i

N is a sti" rod, constructed to fit to the inner edge Aof thecrimping-board, and to press a smoothing-plate,

O, against it at the instep of the boot, as shown in fi 3.

The plate O is bent to conform to the angle of the instep, and isarticulated to the rod N, as shown at o. It lits like an inverted saddleover the edge of the crimping-board, extending up a short distance oneach side, and operating, when pressed in place, to coniine the leatherfirmly to-the board, and prevent its slipping and wrinkliug as the boardand boot are forced between the clamps.

The rod N is fixed in place by fastening one end oi' it over the pin, orhook m, bringing the plate O into position, forcing the opposite end ofthe rod almost against the edge of the crimping-board, and conining itthere bymeans of a hook, P, articulated to the end of the rod, andengaging with the ratchet-teeth, as shown in iig. 1.

F is a vertical rack-slide, working in a suitable socket, or bed in theframe A, or standard a2, and capable of being moved up and down by meansof a pinion, f.

- G gis a gear-arrangement, for the purpose Vof increasing the power,and

g is the crank by which the operator applies the power to move theslide. l

f' is an arm projecting out horizontally from the slide F, and servingto support a stout bent rod, or arm, J, by means of which the patternand boot can be forced down between the clamps.

In operation, the leather is properly cut and tacked to the board M, andis stretched or drawn up at the instep by means of the screw I andcorrugated clamp, or nut I'.

The jaws B B are then slightly separated andthe board placedbetweenthem, as shown in figs. l and 2, and forced down a short distanceby hand.

The operator then takes hold of crank g', turns it to the left, and runsthe slide F and rod J up sailiciently far to allow the bent end of therod to be brought over the apex of the pattern, and inserted into asocket, c, as shown in fg.,3.

The jaw B is then screwed upsuiiciently, andthe 4 crank g is turned tothe right, which runs the slide 'and bent rod J down, forcing thecrimping-board and boot down between the two clamps B B', and thoroughlycrimping the leather, without tearing or wrinkling it.A i

As the board is thus forced down, it operates like a vwedge between thetwo clamps, its lower edge being made tapering, or wedge-form, as shownin fig. 2, to adapt it to that purpose, and it presses back the movablejaw, orclamp B', the spring yielding to accommodate the latter, but yetholding it firmly against the crimping-board and leather.

When it is desired to raise the crimping-board, or pattern out frombetween the clamps, the latter are separatedby means of the screw-nut o,and the crank g is turned to the left. This raises the bent rod J, andas it rises', its notched point, engaging with a stop, t, draws up thecrimping-board from between the clamps. As soon as it is clear of' them,the operator, pressing his iiirger o the stop t, disengages it from therod J, and removes the crimping-board.

Having thus described my invention,

What I claim as new, and desire to secure by Letters Patent, is

1. The bent rod N, having the part 0 articulated to it, as shown at o,and adapted to be attached to the-crimpiug-board byl means of the pinfm, rack m', and hook P, substantially as and for the purposes setforth.

crank g, -the bentrod .L 'having the notch at its upper end, and'dtptedto operate in connection with the stop t, attached to thecrimping-board, substantially as and for the purposes specified;

3. The combination of the spring-standard I) with the nut c, screw-rodO, and movable jaw B',vwhe`n 2.111 eombinaton with slide F, wheels Gr y,andemloyed in a, boot-ol'imper, substantially as' and for the pnrposesset forth.

To the ztbove speeica tion of my invention, I have signed my hand, this17th day of Api'il, 18.69.

Witnesses: p OHAs. A. PBTTIT, S. G. KEMON.V

JOHN B. AIKIN.A

